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(7) The display screen on the FSEU should show CMD ON, SET OFF?.
Select YES. The display will show CMD OFF, SET ON?.
SUBTASK 27-21-00-980-026-002
(8) Push the right rudder pedal until it touches the forward quadrant stop and hold.
SUBTASK 27-21-00-980-027-002
(9) Manually hold the main rudder PCU lower control rod at location B (Figure 505) and pull aft with
a force of approximately 30 to 40 lbs (133 to 178 newtons) until it touches the stop and hold.
NOTE: To make the test easy, you may skip this step. If you skip this step and the test fails,
then you must repeat the test and perform this step.
SUBTASK 27-21-00-700-006-002
(10) Verify voltage between pin 18 and pin 20 of connector D10064 on the E1-EE shelf is greater than
8.13 VDC.
SUBTASK 27-21-00-980-010-002
(11) Release the main rudder PCU lower control rod.
SUBTASK 27-21-00-980-011-002
(12) Release the right rudder pedal.
NOTE: You have completed the test of system B in the retract direction.
H. Rudder main PCU system A Internal Leakage Check in the extend direction.
NOTE: You will need 3 persons to complete this task. There is a time limit to complete some steps
in this task.
SUBTASK 27-21-00-860-134-002
(1) Put the FLT CONTROL A switch, on the P5-3 panel, to the ON position.
SUBTASK 27-21-00-860-135-002
(2) Put the FLT CONTROL B switch, on the P5-3 panel, to the OFF position.
SUBTASK 27-21-00-860-136-002
(3) Use the FSEU, located on the E-1 shelf in the main equipment center, to command the Rudder
Pressure Limiters (RPL) to the "LOW" pressure state. Do these steps:
NOTE: The command will remains active for only 75 seconds after it is set.
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
EFFECTIVITY
GUN 006-099, 101-122; GUN 001-005, 155-157, 201-999
POST SB 737-27-1253
27-21-00
Config 2
Page 567
Oct 10/2007
D633A101-GUN
BOEING PROPRIETARY - Copyright#Unpublished Work - See title page for details
(a) Push the ON/OFF button on the front panel of the flap/slat electronics unit (FSEU), on E
shelf, to turn on the display.
NOTE: The display will show EXISTING FAULTS?
(b) Select OTHER FUNCTNS? from the MAIN MENU on the FSEU. The display will show SET
OUTPUTS?
(c) Select SET OUTPUTS? from the OTHER FUNCTNS? menu. The display will show RUD
PRES LIMIT?
(d) Select RUD PRES LIMIT? from the SET OUTPUTS? menu. The display will show SET ON?
(e) Select SET ON? from the RUD PRES LIMIT? menu. The display will show CMD ON, SET
OFF?
NOTE: You only have 75 seconds to complete the next 3 tasks. If you do not finish in 75
seconds, you will have to repeat the test and start with the steps to use the FSEU
to command the RPL to the "LOW" state.
SUBTASK 27-21-00-980-012-002
(4) Push the left rudder pedal until it touches the forward quadrant stop and hold.
SUBTASK 27-21-00-980-013-002
(5) Manually hold the main rudder PCU upper control rod at location A (Figure 505) and pull
forward with a force of approximately 30 to 40 lbs (133 to 178 newtons) until it touches the stop
and hold.
NOTE: To make the test easy, you may skip this step. If you skip this step and the test fails,
then you must repeat the test and perform this step.
SUBTASK 27-21-00-700-007-002
(6) Verify voltage between pin 18 and pin 20 of connector D10064 on the E1-EE shelf is between 7.37
VDC to 8.13 VDC.
SUBTASK 27-21-00-980-028-002
(7) Release the main rudder PCU control rod.
SUBTASK 27-21-00-980-029-002
(8) Release the rudder pedal.
SUBTASK 27-21-00-860-137-002
(9) The display screen on the FSEU should show CMD ON, SET OFF?.
(a) Select YES. The display will show CMD OFF, SET ON?.
SUBTASK 27-21-00-980-030-002
(10) Push the left rudder pedal until it touches the forward quadrant stop and hold.
SUBTASK 27-21-00-980-031-002
(11) Manually hold the main rudder PCU upper control rod at location A (Figure 505) and pull
forward with a force of approximately 30 to 40 lbs (133 to 178 newtons) until it touches the stop
and hold.
NOTE: To make the test easy, you may skip this step. If you skip this step and the test fails,
then you must repeat the test and perform this step.
SUBTASK 27-21-00-700-008-002
(12) Verify voltage between pin 18 and pin 20 of connector D10064 on the E1-EE shelf is greater than
8.13 VDC.
SUBTASK 27-21-00-980-014-002
(13) Release the main rudder PCU upper control rod.
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
EFFECTIVITY
GUN 006-099, 101-122; GUN 001-005, 155-157, 201-999
POST SB 737-27-1253
27-21-00
Config 2
Page 568
Oct 10/2007
D633A101-GUN
BOEING PROPRIETARY - Copyright#Unpublished Work - See title page for details
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737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL飞机维护手册2(75)
